I don't have details on the rolls and the RNG right now but please keep in mind that we can't cover every topic in one show. We took what was confirmed (and even there some things are still in flux) and what we felt would speak to some of the concerns players have been expressing.
That does not mean we won't be making further changes for Title Update 6 / Episode 2. And we are committed to this game, so even if the change you're looking for specifically might not make it in to TU6, there will be more updates coming after that.
TL:DR we'll have a lot to talk about throughout September and until the patch goes live in October.